Door-manipulator.



PATENTED NOV. 12, 1907.

F. SGHMITZ. DOOR MANIPULATOR.

APPLICATION FILED JULY 1, 1907.

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No. 870,906. PATENTED NOV. 12, 1907. F. SGHMITZ.

DOOR MANIPULATOR.

APPLICATION FILED JULY 1, 1907.

2 SHBBTS-SHEET 2.

WITNESSES INYENTOR:

011(7 ATTORNEY FRANZ SOHMITZ, OF SAN FRANCISCO, CALIFORNIA.

DOOR-MANIPULATOR.

Specification of Letters Patent.

Patented Nov. 12, 1907.

Application filed July 1. 1907. Serial No. 881.656-

To all whom 'it may concern:

Be it known that I, FRANZ SoHMrrz, a citizen of the United States, residing at city and county of San Francisco and State of California, have invented new and useful Improvements in Door-Manipulators, of which the following is a specification.

My invention relates to a mechanism for opening and manipulating doors by means of connections from a distant point.

It consists in a combination of mechanism and in details of construction which will be more fully explained by reference to the accompanying drawings, in which Figure 1 is a view of a door partially in section showing my device. Fig. 2 is a general view showing the door on the first and the operating handle on the second floor. Fig. 3 is a partial horizontal section showing mechanism at the bottom of the door. Fig. 4 is a side elevation showing connections for the operating cords. Fig. 5 shows the application of my device to double doors.

It is the object of my invention to provide a mechanism by which doors located at a distance from the operating point, and sometimes upon different floors, may be opened from said distant point at the will of the operator.

A represents a door, 2 is a spring latch adapted to pass through a keeper 3 which is fixed to the door-casing in the usual or any suitable manner.

4 is a cam lever fulcrumed in line with the latch 2, and having a spring 5 connected with the longer arm, and acting to hold the cam so far back that the spring latch may engage the keeper and normally hold the door in a closed position. By means of a cord or wire 6 extending from the long arm of the cam lever to one arm of a bell-crank lever 7, the cam lever may be moved in unison with movements of the bell-crank lever 7, so as to cause the cam to press the latch bolt back clear of the keeper, and thus allow the door to be swung open.

The bell-crank lever 7 is suitably fulcrumed within the casing, and has a guided, slidable arm 8 connected with the arm opposite to the one with which the cord 6 is connected. This slidable arm 8 has its outer end close to the line of the door-casing, and in line with a rod 9, which is slidable transversely across the lower part of thedoor, and the inner end of this red, contiguous to the hinges of the door, is in line with a lever 10, by which, when said lever is moved, the rod is forced outwardly against the tension of a spring 11, which normally holds it retracted. This outward movement of the rod causes its end to contact with the slidable bar 8, and this acts through the bell-crank lever 7, cord 6 and cam 4 to retract the latch and allow the door to be opened as previously described.

The position of the lever 10 with relation to the door hinges, is such that as soon as the latch is disengaged the pull will cause the door to swing open. The lever 10 is connected by a link 12 with one arm of a lever 13 fulcrumed and concealed within the wall of the building. The other arm of this lever is connected by a link 14 with a fulcrumed lever 15, and cords 16 and 16 extend from the ends of this lever 15 to the distant point which, as shown in Fig. 2, is located upon the second floor, and may be at the head of a flight of stairs leading upward from the street door, or in any other position.

The upper ends of the cords 16 and 16 are connected with the ends of a lever arm 17, and this arm being also concealed within thewalls, may have the usual crank or connection projecting through the wall to a point within reach of the operator. erly turned, the pull upon the cord 16 will act through the lever 15, and pushing upon the link-14 will press the lever 13 in such direction as to cause the link 12 to pull upon the lever 10, and through the rod 9 and its connections, to disengage the latch and allow the door to swing open.

The door may be closed by any suitable spring used for such purpose, and when the pull upon the operating lever at 17 is released, the pull upon the cords 16 at the opposite end of the lever 15 will return the parts to their normal position and the door will be closed and latched.

The present construction shows the cords 16 and 16 connected with opposite ends of the lever 15 so that by turning the crank 17 in the opposite direction the door will be closed by direct pressure through the connected levers, and without the need of any closing spring.

When the requirements of the case make a double door necessary, it will be manifest that the parts and connections to release the latch may be carried upon the second door instead of upon the door-casing, as shown in Fig. 5.

Having thus described my invention, what I claim and desire to secure by Letters Patent is- 1. In a door manipulating mechanism, the combination with a door having a spring-latch, a cam-lever fulcrumed in line with said latch, means for holding the lever out of normal engagement with the latch, a cord connected to the lover, a bell-crank lever disposed near the lower end of the door, said cord being connected to one arm of the bell-crank lever, a push-bar horizontally disposed and connected to the other arm of the bell-crank lever, and having its outer or free end disposed near the line of the door opposite to the hinge side of the latter, a rod slidably mounted on the lower part of the door in line with the outer end of the push-bar, and a hell-crank lever and operating connections by which the rod is caused to engage the bar and retract the latch.

2. In a door manipulating mechanism, the combination with the spring latch thereof of a spring pressed latch retracting cam, and a hell-crank lever with which the cam is connected within the door-casing, a push bar connected with the opposite end of the belLcrank lever, a rod slidable transversely on the door and in line with the bar, a lever fulcrumed to the door and engaging the end of the rod, a second lever fulcrumed in the wall, a

When the crank is prop-- link connecting the two levers, an operating crank arm at a distant point, and cords and intermediate connections whereby the levers are moved to disengage the latch and open the door.

3. In a door manipulating apparatus, a latch retracting cam lever, a bell crank lever with which it is connected within the doorcasing, a slide connecting with the other arm of the hell-crank lever, a spring retracted slidable rod movable transversely on the lower part of the door, a fulcrumed lever engaging the end of the rod, a horizontally fulcrumed lever within the wall having one arm projecting, and a link connecting said arm with the rod actuating lever, a vertically fulcrumed lever, and a link connecting said lever with the horizontal lever, a .crank lever located at the distant point, and cords connecting with'opposlte ends of the vertically fulcrumcd lever.

4. The combination with a hinged door and a frame to which said door is hinged, of guides on the door, a horizontal rod slidable in said guides said rod having one end terminating near the line of the door, opposite to the hinged side thereof, a horizontally slidable member on the door frame having an outer free end disposed in line with the adjacent end of said rod, complementary bellcrank mechanism for actuating the slidable rod whereby the adjacent ends of-the rod and member are brought into direct contact and the member is longitudinally moved, a slidable latch for the door and an actuating cam-lever therefor, and a bell-crank mechanism and connections between the slidable member and the 1atch operating cam lever.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses. FRANZ SCHMITZ.

Witnesses S. H. NOURSE, CHAS. E. TOWNSEND. 

